WO2012076700A1 - Dispositif et procédé de lecture de données média à bord d'un moyen de transport - Google Patents

Dispositif et procédé de lecture de données média à bord d'un moyen de transport Download PDF

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Publication number
WO2012076700A1
WO2012076700A1 PCT/EP2011/072357 EP2011072357W WO2012076700A1 WO 2012076700 A1 WO2012076700 A1 WO 2012076700A1 EP 2011072357 W EP2011072357 W EP 2011072357W WO 2012076700 A1 WO2012076700 A1 WO 2012076700A1
Authority
WO
WIPO (PCT)
Prior art keywords
media data
data
communication device
board
transport
Prior art date
Application number
PCT/EP2011/072357
Other languages
German (de)
English (en)
Inventor
Todd Erdley
Andrew Muirhead
Original Assignee
Lufthansa Technik Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lufthansa Technik Ag filed Critical Lufthansa Technik Ag
Publication of WO2012076700A1 publication Critical patent/WO2012076700A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42646—Internal components of the client ; Characteristics thereof for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42661—Internal components of the client ; Characteristics thereof for reading from or writing on a magnetic storage medium, e.g. hard disk drive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption

Definitions

  • the invention relates to an arrangement and a method for playing media data on board a means of transport.
  • On board means of transport in particular aircraft, passengers are regularly provided with media, in particular videos, which can be played on an on-board playback system.
  • media data to be played must be locally stored on board the means of transport.
  • the contents of, for example, a video database aboard an aircraft must be regularly renewed or updated.
  • various companies offer suitable media subscriptions commercially. Since the media data on board the means of transport are in copy, there is a risk of misuse or non-contractual use.
  • the invention is based on the object to provide an arrangement and a method of the type mentioned above, which allows on board the means of transport a stipulatenutzun and ensures the contractual use of the media.
  • the invention achieves this object in an arrangement according to the invention by the following features: a) stationary: al) a content database containing media data, a.2) a key database containing coding keys and associated decoding keys, a.3) a customer database containing the information a.4) means for encrypting from the content database selected media data using encryption keys from the key database, a.5) a first communication device for transmitting encrypted media data to registered customers, a.6) a second communication device for the transmission of decoding keys to registered customers, b) on board the means of transport: b.
  • a first communication device for receiving encrypted media data b. 2) a second communication device for receiving decoding keys, b. 3) a memory for encrypted media data transmitted via the first communication device, b.4) a device for decrypting encrypted media data using decoding keys received via the second communication device,
  • Means of transport according to the invention operate on water, on land or in the air. Preferably, these are airplanes.
  • media data are in particular video and / or audio data.
  • This media data is stationary, that is preferably stored at a content provider, in an outside of the transport means (for example, stationary on the ground) which is arranged choirda ⁇ tenbank.
  • This content database preferably contains the media data in a form provided by the manufacturer of the media data (for example, the film or video producer). In general, it will be either unverschlüs ⁇ doubted digital files in a standard video or audio format.
  • the content provider hereinafter also referred to as the operator, would like to make the media content available to him available only to registered customers for a fee.
  • media contents are encrypted before their transmission to registered customers by means of suitable techniques known in the art and transmitted in this encrypted form. This makes use of unauthorized persons impossible or at least difficult.
  • the media data may be compressed prior to its transmission by suitable methods known in the art.
  • the first communication device is used to transmit encrypted media data to registered customers. Stationary, ie operator side, is this first communication device for Transmission of the corresponding data formed on board the means of transport is designed to receive this data.
  • the transmission of media data such as movies or videos regularly requires the transfer of large amounts of data.
  • a movie recorded in HD quality requires up to 50 GB when stored in BlueRay format, and about 10 GB after compression.
  • Such amounts of data can not be on board, for example, aircraft in flight operations available communication channels (for example, mobile or satellite distribution ⁇ connection) or transfer only unjustifiable expenditure of time and high costs.
  • the invention therefore provides that the media data in encrypted form via a first communication path (first communication means) übertra ⁇ gene on board the means of transport and there are stored in a memory (preferably in encrypted form yet).
  • the first communication path is selected so that it allows a quick and inexpensive, since ⁇ tenübertragung. He does not have ⁇ was the means of transport are available in each Radio Signal. It can, for example, via a broadband wired connection ⁇ movement of such data, which is available only with a car parked at the gate aircraft available. Alternatively, it may be a broadband wireless connection that bridges only short distances on the ground, such as WLAN.
  • the first communication includes the transfer of a physical disk (preferably a BluRay disc, a magnetic disk, or a suitable flash memory medium) to which the Locks ⁇ rarely media data are uploaded.
  • This disk can be stationary and individually prepared by the operator for each registered customer, for example, by mail or courier übermit ⁇ telt.
  • the first communication device on board the Means then includes a suitable reader for this disk.
  • the first communication path may be unidirectional in one embodiment of the invention, so that it only allows data transmission from the operator (stationary) to the means of transport.
  • a unidirectional first communication path for example, the transmission of a physical ⁇ carrier.
  • the media data transmitted on the first communica ⁇ tionsweg can (for example, flash memory, magnetic disk or optical disk) are stored in a suitable memory. If the first communication path includes the transfer of a physical data carrier, this data carrier which has been transferred and possibly remains on board the means of transport can itself also be this memory within the meaning of the present invention.
  • the erfor ⁇ derliche decoding key by the operator is transmitted to registered users via a second communication path.
  • This second communication path includes a respective second communi cation device ⁇ stationary (the operator), and on board the means of transport.
  • this second Kommunikati ⁇ onsweg includes a wireless telecommunications device and can, for example, data connections via satellite, Mobilfunkver- or possibly also wireless short-range radio links such as WLAN.
  • the second communication path is also accessible during the operation of the means of transport (for example in flight operation) and therefore preferably comprises mobile radio connections or data connections via satellites.
  • the second Kommunikati ⁇ onsweg may therefore be less narrow-band and / or a higher cost per amount of data transferred cause as the first communica ⁇ tionsweg.
  • data transmissions from and on board an aircraft in flight operation are regularly associated with higher costs, as consuming technology (such as satellite connections) are needed.
  • These higher costs are not significant in the present invention, since only ge ⁇ rings data volumes must be transmitted over the second communication path regularly.
  • the transmission of the decoding key via a separate second communication path has the advantage that the operator receives better control over the contractual use of the media data. For example, it is possible to provide a greater number of films for Availability checked ⁇ supply over the first communication, are stored on board the United ⁇ traffic via the first encrypted. Sending the Decodie ⁇ key approximately on the second communication path can then be playing as dependent on the usage request and the payment by the registered clients ⁇ and are staggered over time. For example, activated for a contractually agreed and paid groove ⁇ useful life in weekly or monthly basis ⁇ be agreed films and then blocked again for an wei ⁇ of uses.
  • the second communication path preferably allows bidirek ⁇ tional communication and can therefore be used both by the operator on board the means of transport as well as inversely to the transmission of information.
  • the operator about this second communication path other than those described decode encrypt further information for the customer, or transmits control data for the storage, decryption and playback ⁇ device on board the means of transport.
  • Entspre ⁇ -reaching information to the customer, for example, so-called ⁇ metadata available in the content database media files. In this way, the customer can be informed continuously about new films or the like.
  • the operator may further activation and / or deactivation codes transmitted via the second communication means on board the transport ⁇ .
  • an activation code may unlock the on-board device for decryption or the playback device. It is possible to limit the activation to a predetermined period of, for example, a week or a month, so that activation codes must be transmitted at regular intervals.
  • the operator Prior to the mid ⁇ development of an activation code for the next usage ⁇ period, the operator can check the registration and Zahlungssta ⁇ tus of the customer and refuse to activate for the next period of use when problems arise.
  • the need for periodic transmission of the activation code via the second communication path further provides si ⁇ cher that the system of a registered customers on board a means of transport regular data contact (via the second communication path) with the operator. This allows it For example, operators check the actual usage behavior of the customer.
  • deactivation codes can also be transmitted via the second communication path. These may disable or disable the decryption and / or replay facilities on board the means of transport for a predetermined period of time or indefinitely.
  • the transmission of such a deactivation code may be integrally ⁇ shows, for example, if the operator makes a payment of the customer or a non-contractual use of the media data determined ⁇ .
  • the preferred embodiment of the second bidirectional communi ⁇ cation consistently allows information transmission and the mode of transport to operators. For example, data on the extent of media use on board the means of transport can be sent to the Operator Op ⁇ over. This information can be used for billing, statistical evaluation of user behavior or the like.
  • the customer can also send the operator order data for commissioning the transmission of encrypted media data via the first communication device. For example, as described above, when the customer receives metadata about upcoming movies, he or she may select a collection of desired movies and submit the appropriate information to the operator. The operator can burn the desired composition, for example on a BlueRay disc and send it to the customer.
  • the transmission of the media data in encrypted form over the first communication path and the separate transmission of decoding keys via the second communication path makes Furthermore, it is possible for the customer to first only make a preselection of films that are made available to him / her on the first communication channel without them (because they are encrypted) being able to play them immediately. He thus only acquires the option to watch these films and has already stored them in encrypted form on board the means of transport. Only after a final decision (and payment) on the media data to be reproduced does the customer receive the corresponding decryption code via the second communication path, which enables him to replay the film.
  • the invention further provides a method for playing back or playing back media data on board a means of transport using an arrangement according to the invention.
  • the method according to the invention comprises the following steps:
  • the media data is not un ⁇ indirectly decrypted before playback or not, or alternatively be stored only for a predetermined, limited period of use in the decrypted form. For each replay (if necessary, a replay after the predetermined period of use) thus a new decryption must be performed. This complicates the non-contractual use of the media data.
  • an authorization is preferably carried out via the second communication device using data from the customer database. According to the invention, it may be provided that renewed authorization must take place at predetermined time intervals, as already described above in the context of the arrangement according to the invention.
  • data about the extent of media usage on board the means of transport are transmitted back to the operator via the second communication path.
  • FIG. 2 shows a device for reproducing media on board a means of transport as part of the arrangement according to the invention.
  • FIG. 1 shows a media center 1, a customer data center 2 and an encryption center 3.
  • These three centers together form the stationary or operator-side part of the to the invention arrangement. They can be spatially combined and organized and operated by a single company or operator. Alternatively, it is possible that these three centers are spatially separated and / or be operated by different companies that act together as the operator to the customer.
  • the media center 1 has a media library 5 in the form of a corresponding database. This includes, for example, a variety of films or the like.
  • a metadata bank 6 contains metadata about the movies stored in the media library 5. These may be, for example, titles, Jacobsanga ben, possibly also trailers or the like.
  • a key database 7 includes encryption key and entspre ⁇ sponding decoding key to encrypt or decrypt Me serving data from the media library. 5
  • the customer data center 2 has a customer database 8 in which required data of registered customers are stored.
  • metadata of films can be made available to the customer portal 9 via a connection 15 from the metadata bank 6.
  • the customer data center 2 has an RMU unit (Remote Maintenance Unit), which communicates with the means of transport (in the exemplary embodiment an aircraft 4) via the second communication path indicated at 14.
  • the second communication path 14 is a cellular or satellite data connection.
  • the RMU unit receives via the connection 16 decoding keys from the key database 7.
  • an encryption of the media data supplied via the connection 17 from the media library 5 is performed in the encryption unit 19.
  • the encryption unit 19 takes place on the basis of an order list 22 which is made available by the customer portal 9 via the connection 21.
  • the encrypted media data collection is burned onto a BlueRay Disk 20. Unless the same time as the encryption, compression of the media data is made may at any BlueRay disc 20 about 5-6 encrypted and compressed motion pictures stored in HD quality ⁇ to.
  • the BlueRay disk 20 is shipped to the customer, who inserts it on board the aircraft 4 in the playback unit 23.
  • the content of the BlueRay disc 20 is read out and stored on a hard disk or in a flash memory.
  • the flash memory may be, for example, a 320 GB SSD (Solid State Disk).
  • the reproduction unit 23 on board the aircraft 4 is designed as LRU (Line Replaceable Unit). It is used at 24 in a slot to accommodate a LRU.
  • a BlueRay drive 25 can read media data from the BlueRay disk 20. Read data can be stored on a 320 GB SSD.
  • the playback unit 23 also has a USB port 27, via which media data or possibly other data (for example, operating system data) can also be read.
  • the playback unit 23 has a motherboard 28, which in turn has a main memory 29.
  • the main memory 29 may be formed as a removable data storage, for example as an SD card.
  • LRUs are subject to aviation regulatory approval as integral components of the aircraft. This aviation regulatory approval also applies to software controlled by software LRUs. Changes to the LRU or its control software require aviation law approval.
  • the term main memory refers to program memory of the LRU, in which executable programs (so-called executables) can be stored.
  • the software required for the certification of the LRU is the software or firmware that ensures the proper operation of the LRU required for aviation certification. This software is located in the main memory 29.
  • separated from the main memory 29 SSD 26 media data are stored only. The contents of the main memory 29 remain unchanged by any changes in the contents of the SSD 26. The integrity of the contents of the main memory 29 upon changes in the content of the SSD 26 is ensured by a physical separation or by other appropriate means.
  • the processor of the motherboard 28 may decrypt the encrypted media data and play it back on a display 32 via HDMI connections 30.
  • the second communication device 33 receives on board the aircraft 4 via the second communication path 14 decryption keys, which are fed via the network 31 into the network connection 35 of the reproduction unit 23.
  • a PSU Power Supply Unit
  • PWR Power
  • media data may be recoded prior to being output to the network of the aircraft, for example, video data may be encoded in a higher compression rate standard such as H.264. This can be done, for example, by means of a suitable encoder board happen, as hinted ⁇ tet in Figure 2.
  • Such coded video data are preferably not output via the 30 indicated HDMI connections, but via the network connection indicated at 35.
  • deactivation code to unlock the Playb ⁇ stunning unit 23 a predetermined time period. Thereafter, a Akti ⁇ demoungscode must be transmitted via the second communication path 14 again, which is only then made Availability checked ⁇ supply, when the user has fulfilled its payment obligations. Also possible is the transmission of deactivation codes that block the playback unit 23, for example, if a non-contractual use of the media data is detected.
  • the second communication path 14 is also used for the Informati ⁇ onsübjust from the aircraft to the ground. Information about the actual media use on board the aircraft 4 ⁇ the accounting purposes the customer data center 2 and optionally provided for any other analysis. Furthermore, the user can inform the customer data center 2 via the second communication path 14 which films he would like to receive with the next delivery of BlueRay discs.
  • the second communication path 14 does not have to be constantly available during movie playback. It is sufficient if it is only for a short time available to received required De ⁇ activation codes for the reproduction unit 23 and decoded more approximate key for the media content on the BlueRay disc 20th During the actual media playback on board the aircraft 4 is a data transmission via the second Kom- communication route 14 is not required. The media playback is thus possible even if, for example, during an in ⁇ terkontinentalflugs no connection to the customer data center 2 is available.
  • the user has two communication channels with the customer data center 2 (for example, the orders of new films) for Availability checked ⁇ supply. On the one hand, this can take place from board the aircraft 4 via the second communication path 14. On the other hand, this can happen via the Internet connection 10, for example from the ground.
  • the customer data center 2 for example, the orders of new films

Abstract

L'invention concerne un dispositif de lecture de données média à bord d'un moyen de transport (4) et un procédé correspondant. Des données média sont transmises sous forme codée au moyen d'un premier dispositif de communication à large bande tel que par exemple le transfert d'un disque BlueRay (20). Une clé de décodage correspondante est transmise à des clients enregistrés au moyen d'une deuxième voie de communication (13, 14, 33) telle que par exemple une liaison de téléphonie mobile. La clé de décodage permet le décodage et la reproduction des données média à bord du moyen de transport sans qu'une nouvelle liaison de données avec une base de données stationnaire ne soit nécessaire à cet effet.
PCT/EP2011/072357 2010-12-09 2011-12-09 Dispositif et procédé de lecture de données média à bord d'un moyen de transport WO2012076700A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010053727A DE102010053727A1 (de) 2010-12-09 2010-12-09 Anordnung und Verfahren zum Abspielen von Mediendaten an Bord eines Verkehrsmittels
DE102010053727.6 2010-12-09

Publications (1)

Publication Number Publication Date
WO2012076700A1 true WO2012076700A1 (fr) 2012-06-14

Family

ID=45218737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/072357 WO2012076700A1 (fr) 2010-12-09 2011-12-09 Dispositif et procédé de lecture de données média à bord d'un moyen de transport

Country Status (2)

Country Link
DE (1) DE102010053727A1 (fr)
WO (1) WO2012076700A1 (fr)

Citations (4)

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US20020026424A1 (en) * 2000-08-31 2002-02-28 Matsushita Electric Industrial Co., Ltd. License issuing device/method and contents reproducing device/method
US20020049717A1 (en) * 2000-05-10 2002-04-25 Routtenberg Michael D. Digital content distribution system and method
WO2006104494A1 (fr) * 2005-03-29 2006-10-05 Honda Motor Co., Ltd. Systeme et procede de paiement pour donnees radiodiffusees depuis un emplacement eloigne, vers des vehicules
EP2244193A1 (fr) * 2008-01-11 2010-10-27 Kabushiki Kaisha Kenwood Dispositif de bord de route, procédé de commande et programme

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US7103574B1 (en) * 1999-03-27 2006-09-05 Microsoft Corporation Enforcement architecture and method for digital rights management
US7305560B2 (en) * 2000-12-27 2007-12-04 Proxense, Llc Digital content security system
US7992171B2 (en) * 2006-09-06 2011-08-02 Qurio Holdings, Inc. System and method for controlled viral distribution of digital content in a social network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020049717A1 (en) * 2000-05-10 2002-04-25 Routtenberg Michael D. Digital content distribution system and method
US20020026424A1 (en) * 2000-08-31 2002-02-28 Matsushita Electric Industrial Co., Ltd. License issuing device/method and contents reproducing device/method
WO2006104494A1 (fr) * 2005-03-29 2006-10-05 Honda Motor Co., Ltd. Systeme et procede de paiement pour donnees radiodiffusees depuis un emplacement eloigne, vers des vehicules
EP2244193A1 (fr) * 2008-01-11 2010-10-27 Kabushiki Kaisha Kenwood Dispositif de bord de route, procédé de commande et programme

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